18978694

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{28843}}^1$

素因数の和:28899

約数の個数: 16

約数和(自身を含む): 33228288

約数和(自身を除く): 14249594

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 28843, 57686, 201901, 403802, 1355621, 2711242, 9489347, 18978694]

約数ペア:

[(1, 18978694), (2, 9489347), (7, 2711242), (14, 1355621), (47, 403802), (94, 201901), (329, 57686), (658, 28843)]